src/main/java/net/pterodactylus/sone/core/Core.java

   1 /*
   2  * Sone - Core.java - Copyright © 2010–2013 David Roden
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.pterodactylus.sone.core;
  19
  20 import static com.google.common.base.Optional.of;
  21 import static com.google.common.base.Preconditions.checkArgument;
  22 import static com.google.common.base.Preconditions.checkNotNull;
  23 import static com.google.common.base.Predicates.not;
  24 import static com.google.common.collect.FluentIterable.from;
  25 import static net.pterodactylus.sone.data.Identified.GET_ID;
  26 import static net.pterodactylus.sone.data.Sone.LOCAL_SONE_FILTER;
  27 import static net.pterodactylus.sone.data.Sone.TO_FREENET_URI;
  28
  29 import java.util.Collection;
  30 import java.util.HashMap;
  31 import java.util.HashSet;
  32 import java.util.List;
  33 import java.util.Map;
  34 import java.util.Map.Entry;
  35 import java.util.Set;
  36 import java.util.concurrent.ExecutorService;
  37 import java.util.concurrent.Executors;
  38 import java.util.concurrent.ScheduledExecutorService;
  39 import java.util.concurrent.TimeUnit;
  40 import java.util.logging.Level;
  41 import java.util.logging.Logger;
  42
  43 import net.pterodactylus.sone.core.Options.DefaultOption;
  44 import net.pterodactylus.sone.core.Options.Option;
  45 import net.pterodactylus.sone.core.Options.OptionWatcher;
  46 import net.pterodactylus.sone.core.event.ImageInsertFinishedEvent;
  47 import net.pterodactylus.sone.core.event.MarkPostKnownEvent;
  48 import net.pterodactylus.sone.core.event.MarkPostReplyKnownEvent;
  49 import net.pterodactylus.sone.core.event.MarkSoneKnownEvent;
  50 import net.pterodactylus.sone.core.event.NewPostFoundEvent;
  51 import net.pterodactylus.sone.core.event.NewPostReplyFoundEvent;
  52 import net.pterodactylus.sone.core.event.NewSoneFoundEvent;
  53 import net.pterodactylus.sone.core.event.PostRemovedEvent;
  54 import net.pterodactylus.sone.core.event.PostReplyRemovedEvent;
  55 import net.pterodactylus.sone.core.event.SoneLockedEvent;
  56 import net.pterodactylus.sone.core.event.SoneRemovedEvent;
  57 import net.pterodactylus.sone.core.event.SoneUnlockedEvent;
  58 import net.pterodactylus.sone.data.Album;
  59 import net.pterodactylus.sone.data.Client;
  60 import net.pterodactylus.sone.data.Image;
  61 import net.pterodactylus.sone.data.Post;
  62 import net.pterodactylus.sone.data.PostReply;
  63 import net.pterodactylus.sone.data.Profile;
  64 import net.pterodactylus.sone.data.Profile.Field;
  65 import net.pterodactylus.sone.data.Reply.Modifier.ReplyUpdated;
  66 import net.pterodactylus.sone.data.Sone;
  67 import net.pterodactylus.sone.data.Sone.ShowCustomAvatars;
  68 import net.pterodactylus.sone.data.Sone.SoneStatus;
  69 import net.pterodactylus.sone.data.TemporaryImage;
  70 import net.pterodactylus.sone.database.Database;
  71 import net.pterodactylus.sone.database.DatabaseException;
  72 import net.pterodactylus.sone.database.ImageBuilder.ImageCreated;
  73 import net.pterodactylus.sone.database.PostBuilder;
  74 import net.pterodactylus.sone.database.PostBuilder.PostCreated;
  75 import net.pterodactylus.sone.database.PostReplyBuilder;
  76 import net.pterodactylus.sone.database.PostReplyBuilder.PostReplyCreated;
  77 import net.pterodactylus.sone.database.SoneBuilder.SoneCreated;
  78 import net.pterodactylus.sone.database.SoneProvider;
  79 import net.pterodactylus.sone.fcp.FcpInterface;
  80 import net.pterodactylus.sone.fcp.FcpInterface.FullAccessRequired;
  81 import net.pterodactylus.sone.freenet.wot.Identity;
  82 import net.pterodactylus.sone.freenet.wot.IdentityManager;
  83 import net.pterodactylus.sone.freenet.wot.OwnIdentity;
  84 import net.pterodactylus.sone.freenet.wot.event.IdentityAddedEvent;
  85 import net.pterodactylus.sone.freenet.wot.event.IdentityRemovedEvent;
  86 import net.pterodactylus.sone.freenet.wot.event.IdentityUpdatedEvent;
  87 import net.pterodactylus.sone.freenet.wot.event.OwnIdentityAddedEvent;
  88 import net.pterodactylus.sone.freenet.wot.event.OwnIdentityRemovedEvent;
  89 import net.pterodactylus.sone.main.SonePlugin;
  90 import net.pterodactylus.sone.utils.IntegerRangePredicate;
  91 import net.pterodactylus.util.config.Configuration;
  92 import net.pterodactylus.util.config.ConfigurationException;
  93 import net.pterodactylus.util.logging.Logging;
  94 import net.pterodactylus.util.number.Numbers;
  95 import net.pterodactylus.util.service.AbstractService;
  96 import net.pterodactylus.util.thread.NamedThreadFactory;
  97
  98 import com.google.common.base.Function;
  99 import com.google.common.base.Optional;
 100 import com.google.common.base.Predicate;
 101 import com.google.common.base.Predicates;
 102 import com.google.common.collect.HashMultimap;
 103 import com.google.common.collect.ImmutableSet;
 104 import com.google.common.collect.Maps;
 105 import com.google.common.collect.Multimap;
 106 import com.google.common.collect.Multimaps;
 107 import com.google.common.eventbus.EventBus;
 108 import com.google.common.eventbus.Subscribe;
 109 import com.google.inject.Inject;
 110
 111 /**
 112  * The Sone core.
 113  *
 114  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
 115  */
 116 public class Core extends AbstractService implements SoneProvider {
 117
 118         /** The logger. */
 119         private static final Logger logger = Logging.getLogger(Core.class);
 120
 121         /** The options. */
 122         private final Options options = new Options();
 123
 124         /** The preferences. */
 125         private final Preferences preferences = new Preferences(options);
 126
 127         /** The event bus. */
 128         private final EventBus eventBus;
 129
 130         /** The configuration. */
 131         private Configuration configuration;
 132
 133         /** Whether we’re currently saving the configuration. */
 134         private boolean storingConfiguration = false;
 135
 136         /** The identity manager. */
 137         private final IdentityManager identityManager;
 138
 139         /** Interface to freenet. */
 140         private final FreenetInterface freenetInterface;
 141
 142         /** The Sone downloader. */
 143         private final SoneDownloader soneDownloader;
 144
 145         /** The image inserter. */
 146         private final ImageInserter imageInserter;
 147
 148         /** Sone downloader thread-pool. */
 149         private final ExecutorService soneDownloaders = Executors.newFixedThreadPool(10, new NamedThreadFactory("Sone Downloader %2$d"));
 150
 151         /** The update checker. */
 152         private final UpdateChecker updateChecker;
 153
 154         /** The trust updater. */
 155         private final WebOfTrustUpdater webOfTrustUpdater;
 156
 157         /** The FCP interface. */
 158         private volatile FcpInterface fcpInterface;
 159
 160         /** The times Sones were followed. */
 161         private final Map<String, Long> soneFollowingTimes = new HashMap<String, Long>();
 162
 163         /** Locked local Sones. */
 164         /* synchronize on itself. */
 165         private final Set<Sone> lockedSones = new HashSet<Sone>();
 166
 167         /** Sone inserters. */
 168         /* synchronize access on this on sones. */
 169         private final Map<Sone, SoneInserter> soneInserters = new HashMap<Sone, SoneInserter>();
 170
 171         /** Sone rescuers. */
 172         /* synchronize access on this on sones. */
 173         private final Map<Sone, SoneRescuer> soneRescuers = new HashMap<Sone, SoneRescuer>();
 174
 175         /** All Sones. */
 176         /* synchronize access on this on itself. */
 177         private final Map<String, Sone> sones = new HashMap<String, Sone>();
 178
 179         /** All known Sones. */
 180         private final Set<String> knownSones = new HashSet<String>();
 181
 182         /** The post database. */
 183         private final Database database;
 184
 185         /** All bookmarked posts. */
 186         /* synchronize access on itself. */
 187         private final Set<String> bookmarkedPosts = new HashSet<String>();
 188
 189         /** Trusted identities, sorted by own identities. */
 190         private final Multimap<OwnIdentity, Identity> trustedIdentities = Multimaps.synchronizedSetMultimap(HashMultimap.<OwnIdentity, Identity>create());
 191
 192         /** All temporary images. */
 193         private final Map<String, TemporaryImage> temporaryImages = new HashMap<String, TemporaryImage>();
 194
 195         /** Ticker for threads that mark own elements as known. */
 196         private final ScheduledExecutorService localElementTicker = Executors.newScheduledThreadPool(1);
 197
 198         /** The time the configuration was last touched. */
 199         private volatile long lastConfigurationUpdate;
 200
 201         /**
 202          * Creates a new core.
 203          *
 204          * @param configuration
 205          *              The configuration of the core
 206          * @param freenetInterface
 207          *              The freenet interface
 208          * @param identityManager
 209          *              The identity manager
 210          * @param webOfTrustUpdater
 211          *              The WebOfTrust updater
 212          * @param eventBus
 213          *              The event bus
 214          * @param database
 215          *              The database
 216          */
 217         @Inject
 218         public Core(Configuration configuration, FreenetInterface freenetInterface, IdentityManager identityManager, WebOfTrustUpdater webOfTrustUpdater, EventBus eventBus, Database database) {
 219                 super("Sone Core");
 220                 this.configuration = configuration;
 221                 this.freenetInterface = freenetInterface;
 222                 this.identityManager = identityManager;
 223                 this.soneDownloader = new SoneDownloader(this, freenetInterface);
 224                 this.imageInserter = new ImageInserter(freenetInterface);
 225                 this.updateChecker = new UpdateChecker(eventBus, freenetInterface);
 226                 this.webOfTrustUpdater = webOfTrustUpdater;
 227                 this.eventBus = eventBus;
 228                 this.database = database;
 229         }
 230
 231         //
 232         // ACCESSORS
 233         //
 234
 235         /**
 236          * Sets the configuration to use. This will automatically save the current
 237          * configuration to the given configuration.
 238          *
 239          * @param configuration
 240          *              The new configuration to use
 241          */
 242         public void setConfiguration(Configuration configuration) {
 243                 this.configuration = configuration;
 244                 touchConfiguration();
 245         }
 246
 247         /**
 248          * Returns the options used by the core.
 249          *
 250          * @return The options of the core
 251          */
 252         public Preferences getPreferences() {
 253                 return preferences;
 254         }
 255
 256         /**
 257          * Returns the identity manager used by the core.
 258          *
 259          * @return The identity manager
 260          */
 261         public IdentityManager getIdentityManager() {
 262                 return identityManager;
 263         }
 264
 265         /**
 266          * Returns the update checker.
 267          *
 268          * @return The update checker
 269          */
 270         public UpdateChecker getUpdateChecker() {
 271                 return updateChecker;
 272         }
 273
 274         /**
 275          * Sets the FCP interface to use.
 276          *
 277          * @param fcpInterface
 278          *              The FCP interface to use
 279          */
 280         public void setFcpInterface(FcpInterface fcpInterface) {
 281                 this.fcpInterface = fcpInterface;
 282         }
 283
 284         public Database getDatabase() {
 285                 return database;
 286         }
 287
 288         /**
 289          * Returns the Sone rescuer for the given local Sone.
 290          *
 291          * @param sone
 292          *              The local Sone to get the rescuer for
 293          * @return The Sone rescuer for the given Sone
 294          */
 295         public SoneRescuer getSoneRescuer(Sone sone) {
 296                 checkNotNull(sone, "sone must not be null");
 297                 checkArgument(sone.isLocal(), "sone must be local");
 298                 synchronized (sones) {
 299                         SoneRescuer soneRescuer = soneRescuers.get(sone);
 300                         if (soneRescuer == null) {
 301                                 soneRescuer = new SoneRescuer(this, soneDownloader, sone);
 302                                 soneRescuers.put(sone, soneRescuer);
 303                                 soneRescuer.start();
 304                         }
 305                         return soneRescuer;
 306                 }
 307         }
 308
 309         /**
 310          * Returns whether the given Sone is currently locked.
 311          *
 312          * @param sone
 313          *              The sone to check
 314          * @return {@code true} if the Sone is locked, {@code false} if it is not
 315          */
 316         public boolean isLocked(Sone sone) {
 317                 synchronized (lockedSones) {
 318                         return lockedSones.contains(sone);
 319                 }
 320         }
 321
 322         @Override
 323         public Collection<Sone> getSones() {
 324                 synchronized (sones) {
 325                         return ImmutableSet.copyOf(sones.values());
 326                 }
 327         }
 328
 329         @Override
 330         public Function<String, Optional<Sone>> getSone() {
 331                 return database.getSone();
 332         }
 333
 334         @Override
 335         public Optional<Sone> getSone(String id) {
 336                 synchronized (sones) {
 337                         return Optional.fromNullable(sones.get(id));
 338                 }
 339         }
 340
 341         @Override
 342         public Collection<Sone> getLocalSones() {
 343                 synchronized (sones) {
 344                         return from(sones.values()).filter(new Predicate<Sone>() {
 345
 346                                 @Override
 347                                 public boolean apply(Sone sone) {
 348                                         return sone.isLocal();
 349                                 }
 350                         }).toSet();
 351                 }
 352         }
 353
 354         /**
 355          * Returns the local Sone with the given ID, optionally creating a new Sone.
 356          *
 357          * @param id
 358          *              The ID of the Sone
 359          * @return The Sone with the given ID, or {@code null}
 360          */
 361         public Optional<Sone> getLocalSone(String id) {
 362                 return from(database.getSone(id).asSet()).firstMatch(LOCAL_SONE_FILTER);
 363         }
 364
 365         @Override
 366         public Collection<Sone> getRemoteSones() {
 367                 synchronized (sones) {
 368                         return from(sones.values()).filter(new Predicate<Sone>() {
 369
 370                                 @Override
 371                                 public boolean apply(Sone sone) {
 372                                         return !sone.isLocal();
 373                                 }
 374                         }).toSet();
 375                 }
 376         }
 377
 378         /**
 379          * Returns the remote Sone with the given ID.
 380          *
 381          * @param id
 382          *              The ID of the remote Sone to get
 383          * @return The Sone with the given ID
 384          */
 385         public Optional<Sone> getRemoteSone(String id) {
 386                 return from(database.getSone(id).asSet()).firstMatch(not(LOCAL_SONE_FILTER));
 387         }
 388
 389         /**
 390          * Returns whether the given Sone has been modified.
 391          *
 392          * @param sone
 393          *              The Sone to check for modifications
 394          * @return {@code true} if a modification has been detected in the Sone, {@code
 395          *         false} otherwise
 396          */
 397         public boolean isModifiedSone(Sone sone) {
 398                 return (soneInserters.containsKey(sone)) ? soneInserters.get(sone).isModified() : false;
 399         }
 400
 401         /**
 402          * Returns the time when the given was first followed by any local Sone.
 403          *
 404          * @param sone
 405          *              The Sone to get the time for
 406          * @return The time (in milliseconds since Jan 1, 1970) the Sone has first been
 407          *         followed, or {@link Long#MAX_VALUE}
 408          */
 409         public long getSoneFollowingTime(Sone sone) {
 410                 synchronized (soneFollowingTimes) {
 411                         return Optional.fromNullable(soneFollowingTimes.get(sone.getId())).or(Long.MAX_VALUE);
 412                 }
 413         }
 414
 415         /**
 416          * Returns whether the given post is bookmarked.
 417          *
 418          * @param post
 419          *              The post to check
 420          * @return {@code true} if the given post is bookmarked, {@code false}
 421          *         otherwise
 422          */
 423         public boolean isBookmarked(Post post) {
 424                 return isPostBookmarked(post.getId());
 425         }
 426
 427         /**
 428          * Returns whether the post with the given ID is bookmarked.
 429          *
 430          * @param id
 431          *              The ID of the post to check
 432          * @return {@code true} if the post with the given ID is bookmarked, {@code
 433          *         false} otherwise
 434          */
 435         public boolean isPostBookmarked(String id) {
 436                 synchronized (bookmarkedPosts) {
 437                         return bookmarkedPosts.contains(id);
 438                 }
 439         }
 440
 441         /**
 442          * Returns all currently known bookmarked posts.
 443          *
 444          * @return All bookmarked posts
 445          */
 446         public Set<Post> getBookmarkedPosts() {
 447                 Set<Post> posts = new HashSet<Post>();
 448                 synchronized (bookmarkedPosts) {
 449                         for (String bookmarkedPostId : bookmarkedPosts) {
 450                                 Optional<Post> post = database.getPost(bookmarkedPostId);
 451                                 if (post.isPresent()) {
 452                                         posts.add(post.get());
 453                                 }
 454                         }
 455                 }
 456                 return posts;
 457         }
 458
 459         public Optional<Album> getAlbum(String albumId) {
 460                 return database.getAlbum(albumId);
 461         }
 462
 463         public Optional<Image> getImage(String imageId) {
 464                 return database.getImage(imageId);
 465         }
 466
 467         /**
 468          * Returns the temporary image with the given ID.
 469          *
 470          * @param imageId
 471          *              The ID of the temporary image
 472          * @return The temporary image, or {@code null} if there is no temporary image
 473          *         with the given ID
 474          */
 475         public TemporaryImage getTemporaryImage(String imageId) {
 476                 synchronized (temporaryImages) {
 477                         return temporaryImages.get(imageId);
 478                 }
 479         }
 480
 481         //
 482         // ACTIONS
 483         //
 484
 485         /**
 486          * Locks the given Sone. A locked Sone will not be inserted by {@link
 487          * SoneInserter} until it is {@link #unlockSone(Sone) unlocked} again.
 488          *
 489          * @param sone
 490          *              The sone to lock
 491          */
 492         public void lockSone(Sone sone) {
 493                 synchronized (lockedSones) {
 494                         if (lockedSones.add(sone)) {
 495                                 eventBus.post(new SoneLockedEvent(sone));
 496                         }
 497                 }
 498         }
 499
 500         /**
 501          * Unlocks the given Sone.
 502          *
 503          * @param sone
 504          *              The sone to unlock
 505          * @see #lockSone(Sone)
 506          */
 507         public void unlockSone(Sone sone) {
 508                 synchronized (lockedSones) {
 509                         if (lockedSones.remove(sone)) {
 510                                 eventBus.post(new SoneUnlockedEvent(sone));
 511                         }
 512                 }
 513         }
 514
 515         /**
 516          * Adds a local Sone from the given own identity.
 517          *
 518          * @param ownIdentity
 519          *              The own identity to create a Sone from
 520          * @return The added (or already existing) Sone
 521          */
 522         public Sone addLocalSone(OwnIdentity ownIdentity) {
 523                 if (ownIdentity == null) {
 524                         logger.log(Level.WARNING, "Given OwnIdentity is null!");
 525                         return null;
 526                 }
 527                 logger.info(String.format("Adding Sone from OwnIdentity: %s", ownIdentity));
 528                 synchronized (sones) {
 529                         final Sone sone;
 530                         sone = database.newSoneBuilder().by(ownIdentity.getId()).local().using(new Client("Sone", SonePlugin.VERSION.toString())).build(Optional.<SoneCreated>absent());
 531                         sone.modify().setLatestEdition(Numbers.safeParseLong(ownIdentity.getProperty("Sone.LatestEdition"), (long) 0)).update();
 532                         sone.setKnown(true);
 533                         /* TODO - load posts ’n stuff */
 534                         sones.put(ownIdentity.getId(), sone);
 535                         final SoneInserter soneInserter = new SoneInserter(this, eventBus, freenetInterface, sone);
 536                         soneInserters.put(sone, soneInserter);
 537                         sone.setStatus(SoneStatus.idle);
 538                         loadSone(sone);
 539                         soneInserter.start();
 540                         return sone;
 541                 }
 542         }
 543
 544         /**
 545          * Creates a new Sone for the given own identity.
 546          *
 547          * @param ownIdentity
 548          *              The own identity to create a Sone for
 549          * @return The created Sone
 550          */
 551         public Sone createSone(OwnIdentity ownIdentity) {
 552                 if (!webOfTrustUpdater.addContextWait(ownIdentity, "Sone")) {
 553                         logger.log(Level.SEVERE, String.format("Could not add “Sone” context to own identity: %s", ownIdentity));
 554                         return null;
 555                 }
 556                 Sone sone = addLocalSone(ownIdentity);
 557                 sone.getOptions().addBooleanOption("AutoFollow", new DefaultOption<Boolean>(false));
 558                 sone.getOptions().addBooleanOption("EnableSoneInsertNotifications", new DefaultOption<Boolean>(false));
 559                 sone.getOptions().addBooleanOption("ShowNotification/NewSones", new DefaultOption<Boolean>(true));
 560                 sone.getOptions().addBooleanOption("ShowNotification/NewPosts", new DefaultOption<Boolean>(true));
 561                 sone.getOptions().addBooleanOption("ShowNotification/NewReplies", new DefaultOption<Boolean>(true));
 562                 sone.getOptions().addEnumOption("ShowCustomAvatars", new DefaultOption<ShowCustomAvatars>(ShowCustomAvatars.NEVER));
 563
 564                 followSone(sone, "nwa8lHa271k2QvJ8aa0Ov7IHAV-DFOCFgmDt3X6BpCI");
 565                 touchConfiguration();
 566                 return sone;
 567         }
 568
 569         /**
 570          * Adds the Sone of the given identity.
 571          *
 572          * @param identity
 573          *              The identity whose Sone to add
 574          * @return The added or already existing Sone
 575          */
 576         public Sone addRemoteSone(Identity identity) {
 577                 if (identity == null) {
 578                         logger.log(Level.WARNING, "Given Identity is null!");
 579                         return null;
 580                 }
 581                 synchronized (sones) {
 582                         Optional<Sone> existingSone = database.getSone(identity.getId());
 583                         if (existingSone.isPresent() && existingSone.get().isLocal()) {
 584                                 return existingSone.get();
 585                         }
 586                         boolean newSone = !existingSone.isPresent();
 587                         final Sone sone = newSone ? database.newSoneBuilder().by(identity.getId()).using(new Client("Sone", SonePlugin.VERSION.toString())).build(Optional.<SoneCreated>absent()) : existingSone.get();
 588                         sone.modify().setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), (long) 0)).update();
 589                         if (newSone) {
 590                                 synchronized (knownSones) {
 591                                         newSone = !knownSones.contains(sone.getId());
 592                                 }
 593                                 sone.setKnown(!newSone);
 594                                 if (newSone) {
 595                                         eventBus.post(new NewSoneFoundEvent(sone));
 596                                         for (Sone localSone : getLocalSones()) {
 597                                                 if (localSone.getOptions().getBooleanOption("AutoFollow").get()) {
 598                                                         followSone(localSone, sone.getId());
 599                                                 }
 600                                         }
 601                                 }
 602                         }
 603                         soneDownloader.addSone(sone);
 604                         soneDownloaders.execute(new Runnable() {
 605
 606                                 @Override
 607                                 @SuppressWarnings("synthetic-access")
 608                                 public void run() {
 609                                         soneDownloader.fetchSone(sone, TO_FREENET_URI.apply(sone));
 610                                 }
 611
 612                         });
 613                         return sone;
 614                 }
 615         }
 616
 617         /**
 618          * Lets the given local Sone follow the Sone with the given ID.
 619          *
 620          * @param sone
 621          *              The local Sone that should follow another Sone
 622          * @param soneId
 623          *              The ID of the Sone to follow
 624          */
 625         public void followSone(Sone sone, String soneId) {
 626                 checkNotNull(sone, "sone must not be null");
 627                 checkNotNull(soneId, "soneId must not be null");
 628                 sone.addFriend(soneId);
 629                 synchronized (soneFollowingTimes) {
 630                         if (!soneFollowingTimes.containsKey(soneId)) {
 631                                 long now = System.currentTimeMillis();
 632                                 soneFollowingTimes.put(soneId, now);
 633                                 Optional<Sone> followedSone = getSone(soneId);
 634                                 if (!followedSone.isPresent()) {
 635                                         return;
 636                                 }
 637                                 for (Post post : followedSone.get().getPosts()) {
 638                                         if (post.getTime() < now) {
 639                                                 markPostKnown(post);
 640                                         }
 641                                 }
 642                                 for (PostReply reply : followedSone.get().getReplies()) {
 643                                         if (reply.getTime() < now) {
 644                                                 reply.modify().setKnown().update(Optional.<ReplyUpdated<PostReply>>absent());
 645                                         }
 646                                 }
 647                         }
 648                 }
 649                 touchConfiguration();
 650         }
 651
 652         /**
 653          * Lets the given local Sone unfollow the Sone with the given ID.
 654          *
 655          * @param sone
 656          *              The local Sone that should unfollow another Sone
 657          * @param soneId
 658          *              The ID of the Sone being unfollowed
 659          */
 660         public void unfollowSone(Sone sone, String soneId) {
 661                 checkNotNull(sone, "sone must not be null");
 662                 checkNotNull(soneId, "soneId must not be null");
 663                 sone.removeFriend(soneId);
 664                 boolean unfollowedSoneStillFollowed = false;
 665                 for (Sone localSone : getLocalSones()) {
 666                         unfollowedSoneStillFollowed |= localSone.hasFriend(soneId);
 667                 }
 668                 if (!unfollowedSoneStillFollowed) {
 669                         synchronized (soneFollowingTimes) {
 670                                 soneFollowingTimes.remove(soneId);
 671                         }
 672                 }
 673                 touchConfiguration();
 674         }
 675
 676         /**
 677          * Sets the trust value of the given origin Sone for the target Sone.
 678          *
 679          * @param origin
 680          *              The origin Sone
 681          * @param target
 682          *              The target Sone
 683          * @param trustValue
 684          *              The trust value (from {@code -100} to {@code 100})
 685          */
 686         public void setTrust(Sone origin, Sone target, int trustValue) {
 687                 checkNotNull(origin, "origin must not be null");
 688                 checkArgument(origin.getIdentity() instanceof OwnIdentity, "origin must be a local Sone");
 689                 checkNotNull(target, "target must not be null");
 690                 checkArgument((trustValue >= -100) && (trustValue <= 100), "trustValue must be within [-100, 100]");
 691                 webOfTrustUpdater.setTrust((OwnIdentity) origin.getIdentity(), target.getIdentity(), trustValue, preferences.getTrustComment());
 692         }
 693
 694         /**
 695          * Removes any trust assignment for the given target Sone.
 696          *
 697          * @param origin
 698          *              The trust origin
 699          * @param target
 700          *              The trust target
 701          */
 702         public void removeTrust(Sone origin, Sone target) {
 703                 checkNotNull(origin, "origin must not be null");
 704                 checkNotNull(target, "target must not be null");
 705                 checkArgument(origin.getIdentity() instanceof OwnIdentity, "origin must be a local Sone");
 706                 webOfTrustUpdater.setTrust((OwnIdentity) origin.getIdentity(), target.getIdentity(), null, null);
 707         }
 708
 709         /**
 710          * Assigns the configured positive trust value for the given target.
 711          *
 712          * @param origin
 713          *              The trust origin
 714          * @param target
 715          *              The trust target
 716          */
 717         public void trustSone(Sone origin, Sone target) {
 718                 setTrust(origin, target, preferences.getPositiveTrust());
 719         }
 720
 721         /**
 722          * Assigns the configured negative trust value for the given target.
 723          *
 724          * @param origin
 725          *              The trust origin
 726          * @param target
 727          *              The trust target
 728          */
 729         public void distrustSone(Sone origin, Sone target) {
 730                 setTrust(origin, target, preferences.getNegativeTrust());
 731         }
 732
 733         /**
 734          * Removes the trust assignment for the given target.
 735          *
 736          * @param origin
 737          *              The trust origin
 738          * @param target
 739          *              The trust target
 740          */
 741         public void untrustSone(Sone origin, Sone target) {
 742                 removeTrust(origin, target);
 743         }
 744
 745         /**
 746          * Updates the stored Sone with the given Sone.
 747          *
 748          * @param sone
 749          *              The updated Sone
 750          */
 751         public void updateSone(Sone sone) {
 752                 updateSone(sone, false);
 753         }
 754
 755         /**
 756          * Updates the stored Sone with the given Sone. If {@code soneRescueMode} is
 757          * {@code true}, an older Sone than the current Sone can be given to restore an
 758          * old state.
 759          *
 760          * @param sone
 761          *              The Sone to update
 762          * @param soneRescueMode
 763          *              {@code true} if the stored Sone should be updated regardless of the age of
 764          *              the given Sone
 765          */
 766         public void updateSone(Sone sone, boolean soneRescueMode) {
 767                 Optional<Sone> storedSone = getSone(sone.getId());
 768                 if (storedSone.isPresent()) {
 769                         if (!soneRescueMode && !(sone.getTime() > storedSone.get().getTime())) {
 770                                 logger.log(Level.FINE, String.format("Downloaded Sone %s is not newer than stored Sone %s.", sone, storedSone));
 771                                 return;
 772                         }
 773                         /* find removed posts. */
 774                         Collection<Post> existingPosts = database.getPosts(sone.getId());
 775                         for (Post oldPost : existingPosts) {
 776                                 if (!sone.getPosts().contains(oldPost)) {
 777                                         eventBus.post(new PostRemovedEvent(oldPost));
 778                                 }
 779                         }
 780                         /* find new posts. */
 781                         for (Post newPost : sone.getPosts()) {
 782                                 if (existingPosts.contains(newPost)) {
 783                                         continue;
 784                                 }
 785                                 if (newPost.getTime() < getSoneFollowingTime(sone)) {
 786                                         newPost.setKnown(true);
 787                                 } else if (!newPost.isKnown()) {
 788                                         eventBus.post(new NewPostFoundEvent(newPost));
 789                                 }
 790                         }
 791                         /* store posts. */
 792                         database.storePosts(sone, sone.getPosts());
 793                         if (!soneRescueMode) {
 794                                 for (PostReply reply : storedSone.get().getReplies()) {
 795                                         if (!sone.getReplies().contains(reply)) {
 796                                                 eventBus.post(new PostReplyRemovedEvent(reply));
 797                                         }
 798                                 }
 799                         }
 800                         Set<PostReply> storedReplies = storedSone.get().getReplies();
 801                         for (PostReply reply : sone.getReplies()) {
 802                                 if (storedReplies.contains(reply)) {
 803                                         continue;
 804                                 }
 805                                 if (reply.getTime() < getSoneFollowingTime(sone)) {
 806                                         reply.modify().setKnown().update(Optional.<ReplyUpdated<PostReply>>absent());
 807                                 } else if (!reply.isKnown()) {
 808                                         eventBus.post(new NewPostReplyFoundEvent(reply));
 809                                 }
 810                         }
 811                         database.storePostReplies(sone, sone.getReplies());
 812                         for (Album album : storedSone.get().getRootAlbum().getAlbums()) {
 813                                 database.removeAlbum(album);
 814                                 for (Image image : album.getImages()) {
 815                                         database.removeImage(image);
 816                                 }
 817                         }
 818                         for (Album album : sone.getRootAlbum().getAlbums()) {
 819                                 database.storeAlbum(album);
 820                                 for (Image image : album.getImages()) {
 821                                         database.storeImage(image);
 822                                 }
 823                         }
 824                         synchronized (sones) {
 825                                 sone.setOptions(storedSone.get().getOptions());
 826                                 sone.setKnown(storedSone.get().isKnown());
 827                                 sone.setStatus((sone.getTime() == 0) ? SoneStatus.unknown : SoneStatus.idle);
 828                                 if (sone.isLocal()) {
 829                                         soneInserters.get(storedSone.get()).setSone(sone);
 830                                         touchConfiguration();
 831                                 }
 832                                 sones.put(sone.getId(), sone);
 833                         }
 834                 }
 835         }
 836
 837         /**
 838          * Deletes the given Sone. This will remove the Sone from the {@link
 839          * #getLocalSones() local Sones}, stop its {@link SoneInserter} and remove the
 840          * context from its identity.
 841          *
 842          * @param sone
 843          *              The Sone to delete
 844          */
 845         public void deleteSone(Sone sone) {
 846                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
 847                         logger.log(Level.WARNING, String.format("Tried to delete Sone of non-own identity: %s", sone));
 848                         return;
 849                 }
 850                 synchronized (sones) {
 851                         if (!getLocalSones().contains(sone)) {
 852                                 logger.log(Level.WARNING, String.format("Tried to delete non-local Sone: %s", sone));
 853                                 return;
 854                         }
 855                         sones.remove(sone.getId());
 856                         SoneInserter soneInserter = soneInserters.remove(sone);
 857                         soneInserter.stop();
 858                 }
 859                 webOfTrustUpdater.removeContext((OwnIdentity) sone.getIdentity(), "Sone");
 860                 webOfTrustUpdater.removeProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition");
 861                 try {
 862                         configuration.getLongValue("Sone/" + sone.getId() + "/Time").setValue(null);
 863                 } catch (ConfigurationException ce1) {
 864                         logger.log(Level.WARNING, "Could not remove Sone from configuration!", ce1);
 865                 }
 866         }
 867
 868         /**
 869          * Marks the given Sone as known. If the Sone was not {@link Post#isKnown()
 870          * known} before, a {@link MarkSoneKnownEvent} is fired.
 871          *
 872          * @param sone
 873          *              The Sone to mark as known
 874          */
 875         public void markSoneKnown(Sone sone) {
 876                 if (!sone.isKnown()) {
 877                         sone.setKnown(true);
 878                         synchronized (knownSones) {
 879                                 knownSones.add(sone.getId());
 880                         }
 881                         eventBus.post(new MarkSoneKnownEvent(sone));
 882                         touchConfiguration();
 883                 }
 884         }
 885
 886         /**
 887          * Loads and updates the given Sone from the configuration. If any error is
 888          * encountered, loading is aborted and the given Sone is not changed.
 889          *
 890          * @param sone
 891          *              The Sone to load and update
 892          */
 893         public void loadSone(Sone sone) {
 894                 if (!sone.isLocal()) {
 895                         logger.log(Level.FINE, String.format("Tried to load non-local Sone: %s", sone));
 896                         return;
 897                 }
 898                 logger.info(String.format("Loading local Sone: %s", sone));
 899
 900                 /* initialize options. */
 901                 sone.getOptions().addBooleanOption("AutoFollow", new DefaultOption<Boolean>(false));
 902                 sone.getOptions().addBooleanOption("EnableSoneInsertNotifications", new DefaultOption<Boolean>(false));
 903                 sone.getOptions().addBooleanOption("ShowNotification/NewSones", new DefaultOption<Boolean>(true));
 904                 sone.getOptions().addBooleanOption("ShowNotification/NewPosts", new DefaultOption<Boolean>(true));
 905                 sone.getOptions().addBooleanOption("ShowNotification/NewReplies", new DefaultOption<Boolean>(true));
 906                 sone.getOptions().addEnumOption("ShowCustomAvatars", new DefaultOption<ShowCustomAvatars>(ShowCustomAvatars.NEVER));
 907
 908                 /* load Sone. */
 909                 String sonePrefix = "Sone/" + sone.getId();
 910                 Long soneTime = configuration.getLongValue(sonePrefix + "/Time").getValue(null);
 911                 if (soneTime == null) {
 912                         logger.log(Level.INFO, "Could not load Sone because no Sone has been saved.");
 913                         return;
 914                 }
 915                 String lastInsertFingerprint = configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").getValue("");
 916
 917                 /* load profile. */
 918                 Profile profile = new Profile(sone);
 919                 String firstName = configuration.getStringValue(sonePrefix + "/Profile/FirstName").getValue(null);
 920                 String middleName = configuration.getStringValue(sonePrefix + "/Profile/MiddleName").getValue(null);
 921                 String lastName = configuration.getStringValue(sonePrefix + "/Profile/LastName").getValue(null);
 922                 profile.modify().setFirstName(firstName).setMiddleName(middleName).setLastName(lastName).update();
 923                 Integer birthDay = configuration.getIntValue(sonePrefix + "/Profile/BirthDay").getValue(null);
 924                 Integer birthMonth = configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").getValue(null);
 925                 Integer birthYear = configuration.getIntValue(sonePrefix + "/Profile/BirthYear").getValue(null);
 926                 profile.modify().setBirthYear(birthYear).setBirthMonth(birthMonth).setBirthDay(birthDay).update();
 927
 928                 /* load profile fields. */
 929                 while (true) {
 930                         String fieldPrefix = sonePrefix + "/Profile/Fields/" + profile.getFields().size();
 931                         String fieldName = configuration.getStringValue(fieldPrefix + "/Name").getValue(null);
 932                         if (fieldName == null) {
 933                                 break;
 934                         }
 935                         String fieldValue = configuration.getStringValue(fieldPrefix + "/Value").getValue("");
 936                         profile.setField(profile.addField(fieldName), fieldValue);
 937                 }
 938
 939                 /* load posts. */
 940                 Set<Post> posts = new HashSet<Post>();
 941                 while (true) {
 942                         String postPrefix = sonePrefix + "/Posts/" + posts.size();
 943                         String postId = configuration.getStringValue(postPrefix + "/ID").getValue(null);
 944                         if (postId == null) {
 945                                 break;
 946                         }
 947                         String postRecipientId = configuration.getStringValue(postPrefix + "/Recipient").getValue(null);
 948                         long postTime = configuration.getLongValue(postPrefix + "/Time").getValue((long) 0);
 949                         String postText = configuration.getStringValue(postPrefix + "/Text").getValue(null);
 950                         if ((postTime == 0) || (postText == null)) {
 951                                 logger.log(Level.WARNING, "Invalid post found, aborting load!");
 952                                 return;
 953                         }
 954                         PostBuilder postBuilder = sone.newPostBuilder().withId(postId).withTime(postTime).withText(postText);
 955                         if ((postRecipientId != null) && (postRecipientId.length() == 43)) {
 956                                 postBuilder.to(of(postRecipientId));
 957                         }
 958                         posts.add(postBuilder.build(Optional.<PostCreated>absent()));
 959                 }
 960
 961                 /* load replies. */
 962                 Set<PostReply> replies = new HashSet<PostReply>();
 963                 while (true) {
 964                         String replyPrefix = sonePrefix + "/Replies/" + replies.size();
 965                         String replyId = configuration.getStringValue(replyPrefix + "/ID").getValue(null);
 966                         if (replyId == null) {
 967                                 break;
 968                         }
 969                         String postId = configuration.getStringValue(replyPrefix + "/Post/ID").getValue(null);
 970                         long replyTime = configuration.getLongValue(replyPrefix + "/Time").getValue((long) 0);
 971                         String replyText = configuration.getStringValue(replyPrefix + "/Text").getValue(null);
 972                         if ((postId == null) || (replyTime == 0) || (replyText == null)) {
 973                                 logger.log(Level.WARNING, "Invalid reply found, aborting load!");
 974                                 return;
 975                         }
 976                         PostReplyBuilder postReplyBuilder = sone.newPostReplyBuilder(postId).withId(replyId).withTime(replyTime).withText(replyText);
 977                         replies.add(postReplyBuilder.build(Optional.<PostReplyCreated>absent()));
 978                 }
 979
 980                 /* load post likes. */
 981                 Set<String> likedPostIds = new HashSet<String>();
 982                 while (true) {
 983                         String likedPostId = configuration.getStringValue(sonePrefix + "/Likes/Post/" + likedPostIds.size() + "/ID").getValue(null);
 984                         if (likedPostId == null) {
 985                                 break;
 986                         }
 987                         likedPostIds.add(likedPostId);
 988                 }
 989
 990                 /* load reply likes. */
 991                 Set<String> likedReplyIds = new HashSet<String>();
 992                 while (true) {
 993                         String likedReplyId = configuration.getStringValue(sonePrefix + "/Likes/Reply/" + likedReplyIds.size() + "/ID").getValue(null);
 994                         if (likedReplyId == null) {
 995                                 break;
 996                         }
 997                         likedReplyIds.add(likedReplyId);
 998                 }
 999
1000                 /* load friends. */
1001                 Set<String> friends = new HashSet<String>();
1002                 while (true) {
1003                         String friendId = configuration.getStringValue(sonePrefix + "/Friends/" + friends.size() + "/ID").getValue(null);
1004                         if (friendId == null) {
1005                                 break;
1006                         }
1007                         friends.add(friendId);
1008                 }
1009
1010                 /* load albums. */
1011                 Map<String, Album> albums = Maps.newHashMap();
1012                 int albumCounter = 0;
1013                 while (true) {
1014                         String albumPrefix = sonePrefix + "/Albums/" + albumCounter++;
1015                         String albumId = configuration.getStringValue(albumPrefix + "/ID").getValue(null);
1016                         if (albumId == null) {
1017                                 break;
1018                         }
1019                         String albumTitle = configuration.getStringValue(albumPrefix + "/Title").getValue(null);
1020                         String albumDescription = configuration.getStringValue(albumPrefix + "/Description").getValue(null);
1021                         String albumParentId = configuration.getStringValue(albumPrefix + "/Parent").getValue(null);
1022                         String albumImageId = configuration.getStringValue(albumPrefix + "/AlbumImage").getValue(null);
1023                         if ((albumTitle == null) || (albumDescription == null)) {
1024                                 logger.log(Level.WARNING, "Invalid album found, aborting load!");
1025                                 return;
1026                         }
1027                         Album parentAlbum = sone.getRootAlbum();
1028                         if (albumParentId != null) {
1029                                 parentAlbum = albums.get(albumParentId);
1030                         }
1031                         Album album = parentAlbum.newAlbumBuilder().withId(albumId).build().modify().setTitle(albumTitle).setDescription(albumDescription).setAlbumImage(albumImageId).update();
1032                         albums.put(album.getId(), album);
1033                 }
1034
1035                 /* load images. */
1036                 int imageCounter = 0;
1037                 while (true) {
1038                         String imagePrefix = sonePrefix + "/Images/" + imageCounter++;
1039                         String imageId = configuration.getStringValue(imagePrefix + "/ID").getValue(null);
1040                         if (imageId == null) {
1041                                 break;
1042                         }
1043                         String albumId = configuration.getStringValue(imagePrefix + "/Album").getValue(null);
1044                         String key = configuration.getStringValue(imagePrefix + "/Key").getValue(null);
1045                         String title = configuration.getStringValue(imagePrefix + "/Title").getValue(null);
1046                         String description = configuration.getStringValue(imagePrefix + "/Description").getValue(null);
1047                         Long creationTime = configuration.getLongValue(imagePrefix + "/CreationTime").getValue(null);
1048                         Integer width = configuration.getIntValue(imagePrefix + "/Width").getValue(null);
1049                         Integer height = configuration.getIntValue(imagePrefix + "/Height").getValue(null);
1050                         if ((albumId == null) || (key == null) || (title == null) || (description == null) || (creationTime == null) || (width == null) || (height == null)) {
1051                                 logger.log(Level.WARNING, "Invalid image found, aborting load!");
1052                                 return;
1053                         }
1054                         Album album = albums.get(albumId);
1055                         if (album == null) {
1056                                 logger.log(Level.WARNING, "Invalid album image encountered, aborting load!");
1057                                 return;
1058                         }
1059                         album.newImageBuilder().withId(imageId).created(creationTime).at(key).sized(width, height).build(Optional.<ImageCreated>absent()).modify().setTitle(title).setDescription(description).update();
1060                 }
1061
1062                 /* load avatar. */
1063                 String avatarId = configuration.getStringValue(sonePrefix + "/Profile/Avatar").getValue(null);
1064                 if (avatarId != null) {
1065                         profile.setAvatar(getImage(avatarId).transform(GET_ID));
1066                 }
1067
1068                 /* load options. */
1069                 sone.getOptions().getBooleanOption("AutoFollow").set(configuration.getBooleanValue(sonePrefix + "/Options/AutoFollow").getValue(null));
1070                 sone.getOptions().getBooleanOption("EnableSoneInsertNotifications").set(configuration.getBooleanValue(sonePrefix + "/Options/EnableSoneInsertNotifications").getValue(null));
1071                 sone.getOptions().getBooleanOption("ShowNotification/NewSones").set(configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewSones").getValue(null));
1072                 sone.getOptions().getBooleanOption("ShowNotification/NewPosts").set(configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewPosts").getValue(null));
1073                 sone.getOptions().getBooleanOption("ShowNotification/NewReplies").set(configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewReplies").getValue(null));
1074                 sone.getOptions().<ShowCustomAvatars>getEnumOption("ShowCustomAvatars").set(ShowCustomAvatars.valueOf(configuration.getStringValue(sonePrefix + "/Options/ShowCustomAvatars").getValue(ShowCustomAvatars.NEVER.name())));
1075
1076                 /* if we’re still here, Sone was loaded successfully. */
1077                 synchronized (sone) {
1078                         sone.setTime(soneTime);
1079                         sone.setProfile(profile);
1080                         sone.setPosts(posts);
1081                         sone.setReplies(replies);
1082                         sone.setLikePostIds(likedPostIds);
1083                         sone.setLikeReplyIds(likedReplyIds);
1084                         for (String friendId : friends) {
1085                                 followSone(sone, friendId);
1086                         }
1087                         for (Album album : sone.getRootAlbum().getAlbums()) {
1088                                 album.remove();
1089                         }
1090                         soneInserters.get(sone).setLastInsertFingerprint(lastInsertFingerprint);
1091                 }
1092                 synchronized (knownSones) {
1093                         for (String friend : friends) {
1094                                 knownSones.add(friend);
1095                         }
1096                 }
1097                 database.storePosts(sone, posts);
1098                 for (Post post : posts) {
1099                         post.setKnown(true);
1100                 }
1101                 database.storePostReplies(sone, replies);
1102                 for (PostReply reply : replies) {
1103                         reply.modify().setKnown().update(Optional.<ReplyUpdated<PostReply>>absent());
1104                 }
1105
1106                 logger.info(String.format("Sone loaded successfully: %s", sone));
1107         }
1108
1109         /**
1110          * Deletes the given post.
1111          *
1112          * @param post
1113          *              The post to delete
1114          */
1115         public void deletePost(Post post) {
1116                 if (!post.getSone().isLocal()) {
1117                         logger.log(Level.WARNING, String.format("Tried to delete post of non-local Sone: %s", post.getSone()));
1118                         return;
1119                 }
1120                 database.removePost(post);
1121                 eventBus.post(new PostRemovedEvent(post));
1122                 markPostKnown(post);
1123                 touchConfiguration();
1124         }
1125
1126         /**
1127          * Marks the given post as known, if it is currently not a known post
1128          * (according to {@link Post#isKnown()}).
1129          *
1130          * @param post
1131          *              The post to mark as known
1132          */
1133         public void markPostKnown(Post post) {
1134                 post.setKnown(true);
1135                 eventBus.post(new MarkPostKnownEvent(post));
1136                 touchConfiguration();
1137                 for (PostReply reply : post.getReplies()) {
1138                         reply.modify().setKnown().update(postReplyUpdated());
1139                 }
1140         }
1141
1142         /**
1143          * Bookmarks the post with the given ID.
1144          *
1145          * @param id
1146          *              The ID of the post to bookmark
1147          */
1148         public void bookmarkPost(String id) {
1149                 synchronized (bookmarkedPosts) {
1150                         bookmarkedPosts.add(id);
1151                 }
1152         }
1153
1154         /**
1155          * Removes the given post from the bookmarks.
1156          *
1157          * @param post
1158          *              The post to unbookmark
1159          */
1160         public void unbookmark(Post post) {
1161                 unbookmarkPost(post.getId());
1162         }
1163
1164         /**
1165          * Removes the post with the given ID from the bookmarks.
1166          *
1167          * @param id
1168          *              The ID of the post to unbookmark
1169          */
1170         public void unbookmarkPost(String id) {
1171                 synchronized (bookmarkedPosts) {
1172                         bookmarkedPosts.remove(id);
1173                 }
1174         }
1175
1176         /**
1177          * Deletes the given reply.
1178          *
1179          * @param reply
1180          *              The reply to delete
1181          */
1182         public void deleteReply(PostReply reply) {
1183                 Sone sone = reply.getSone();
1184                 if (!sone.isLocal()) {
1185                         logger.log(Level.FINE, String.format("Tried to delete non-local reply: %s", reply));
1186                         return;
1187                 }
1188                 postReplyUpdated().get().replyUpdated(reply);
1189                 database.removePostReply(reply);
1190                 touchConfiguration();
1191         }
1192
1193         /**
1194          * Creates a new image.
1195          *
1196          * @param sone
1197          *              The Sone creating the image
1198          * @param album
1199          *              The album the image will be inserted into
1200          * @param temporaryImage
1201          *              The temporary image to create the image from
1202          * @return The newly created image
1203          */
1204         public Image createImage(Sone sone, Album album, TemporaryImage temporaryImage) {
1205                 checkNotNull(sone, "sone must not be null");
1206                 checkNotNull(album, "album must not be null");
1207                 checkNotNull(temporaryImage, "temporaryImage must not be null");
1208                 checkArgument(sone.isLocal(), "sone must be a local Sone");
1209                 checkArgument(sone.equals(album.getSone()), "album must belong to the given Sone");
1210                 Image image = album.newImageBuilder().withId(temporaryImage.getId()).sized(temporaryImage.getWidth(), temporaryImage.getHeight()).build(imageCreated());
1211                 imageInserter.insertImage(temporaryImage, image);
1212                 return image;
1213         }
1214
1215         /**
1216          * Deletes the given image. This method will also delete a matching temporary
1217          * image.
1218          *
1219          * @param image
1220          *              The image to delete
1221          * @see #deleteTemporaryImage(String)
1222          */
1223         public void deleteImage(Image image) {
1224                 checkNotNull(image, "image must not be null");
1225                 checkArgument(image.getSone().isLocal(), "image must belong to a local Sone");
1226                 deleteTemporaryImage(image.getId());
1227                 image.remove();
1228                 touchConfiguration();
1229         }
1230
1231         /**
1232          * Creates a new temporary image.
1233          *
1234          * @param mimeType
1235          *              The MIME type of the temporary image
1236          * @param imageData
1237          *              The encoded data of the image
1238          * @return The temporary image
1239          */
1240         public TemporaryImage createTemporaryImage(String mimeType, byte[] imageData, int width, int height) {
1241                 TemporaryImage temporaryImage = new TemporaryImage(mimeType, imageData, width, height);
1242                 synchronized (temporaryImages) {
1243                         temporaryImages.put(temporaryImage.getId(), temporaryImage);
1244                 }
1245                 return temporaryImage;
1246         }
1247
1248         /**
1249          * Deletes the temporary image with the given ID.
1250          *
1251          * @param imageId
1252          *              The ID of the temporary image to delete
1253          */
1254         public void deleteTemporaryImage(String imageId) {
1255                 checkNotNull(imageId, "imageId must not be null");
1256                 synchronized (temporaryImages) {
1257                         temporaryImages.remove(imageId);
1258                 }
1259                 Optional<Image> image = getImage(imageId);
1260                 if (image.isPresent()) {
1261                         imageInserter.cancelImageInsert(image.get());
1262                 }
1263         }
1264
1265         /**
1266          * Notifies the core that the configuration, either of the core or of a single
1267          * local Sone, has changed, and that the configuration should be saved.
1268          */
1269         public void touchConfiguration() {
1270                 lastConfigurationUpdate = System.currentTimeMillis();
1271         }
1272
1273         //
1274         // SERVICE METHODS
1275         //
1276
1277         @Override
1278         public void serviceStart() {
1279                 loadConfiguration();
1280                 updateChecker.start();
1281                 identityManager.start();
1282                 webOfTrustUpdater.init();
1283                 webOfTrustUpdater.start();
1284                 database.start();
1285         }
1286
1287         @Override
1288         public void serviceRun() {
1289                 long lastSaved = System.currentTimeMillis();
1290                 while (!shouldStop()) {
1291                         sleep(1000);
1292                         long now = System.currentTimeMillis();
1293                         if (shouldStop() || ((lastConfigurationUpdate > lastSaved) && ((now - lastConfigurationUpdate) > 5000))) {
1294                                 for (Sone localSone : getLocalSones()) {
1295                                         saveSone(localSone);
1296                                 }
1297                                 saveConfiguration();
1298                                 lastSaved = now;
1299                         }
1300                 }
1301         }
1302
1303         @Override
1304         public void serviceStop() {
1305                 localElementTicker.shutdownNow();
1306                 synchronized (sones) {
1307                         for (Entry<Sone, SoneInserter> soneInserter : soneInserters.entrySet()) {
1308                                 soneInserter.getValue().stop();
1309                                 saveSone(soneInserter.getKey());
1310                         }
1311                 }
1312                 saveConfiguration();
1313                 database.stop();
1314                 webOfTrustUpdater.stop();
1315                 updateChecker.stop();
1316                 soneDownloader.stop();
1317                 soneDownloaders.shutdown();
1318                 identityManager.stop();
1319         }
1320
1321         //
1322         // PRIVATE METHODS
1323         //
1324
1325         /**
1326          * Saves the given Sone. This will persist all local settings for the given
1327          * Sone, such as the friends list and similar, private options.
1328          *
1329          * @param sone
1330          *              The Sone to save
1331          */
1332         private synchronized void saveSone(Sone sone) {
1333                 if (!sone.isLocal()) {
1334                         logger.log(Level.FINE, String.format("Tried to save non-local Sone: %s", sone));
1335                         return;
1336                 }
1337                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
1338                         logger.log(Level.WARNING, String.format("Local Sone without OwnIdentity found, refusing to save: %s", sone));
1339                         return;
1340                 }
1341
1342                 logger.log(Level.INFO, String.format("Saving Sone: %s", sone));
1343                 try {
1344                         /* save Sone into configuration. */
1345                         String sonePrefix = "Sone/" + sone.getId();
1346                         configuration.getLongValue(sonePrefix + "/Time").setValue(sone.getTime());
1347                         configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").setValue(soneInserters.get(sone).getLastInsertFingerprint());
1348
1349                         /* save profile. */
1350                         Profile profile = sone.getProfile();
1351                         configuration.getStringValue(sonePrefix + "/Profile/FirstName").setValue(profile.getFirstName());
1352                         configuration.getStringValue(sonePrefix + "/Profile/MiddleName").setValue(profile.getMiddleName());
1353                         configuration.getStringValue(sonePrefix + "/Profile/LastName").setValue(profile.getLastName());
1354                         configuration.getIntValue(sonePrefix + "/Profile/BirthDay").setValue(profile.getBirthDay());
1355                         configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").setValue(profile.getBirthMonth());
1356                         configuration.getIntValue(sonePrefix + "/Profile/BirthYear").setValue(profile.getBirthYear());
1357                         configuration.getStringValue(sonePrefix + "/Profile/Avatar").setValue(profile.getAvatar());
1358
1359                         /* save profile fields. */
1360                         int fieldCounter = 0;
1361                         for (Field profileField : profile.getFields()) {
1362                                 String fieldPrefix = sonePrefix + "/Profile/Fields/" + fieldCounter++;
1363                                 configuration.getStringValue(fieldPrefix + "/Name").setValue(profileField.getName());
1364                                 configuration.getStringValue(fieldPrefix + "/Value").setValue(profileField.getValue());
1365                         }
1366                         configuration.getStringValue(sonePrefix + "/Profile/Fields/" + fieldCounter + "/Name").setValue(null);
1367
1368                         /* save posts. */
1369                         int postCounter = 0;
1370                         for (Post post : sone.getPosts()) {
1371                                 String postPrefix = sonePrefix + "/Posts/" + postCounter++;
1372                                 configuration.getStringValue(postPrefix + "/ID").setValue(post.getId());
1373                                 configuration.getStringValue(postPrefix + "/Recipient").setValue(post.getRecipientId().orNull());
1374                                 configuration.getLongValue(postPrefix + "/Time").setValue(post.getTime());
1375                                 configuration.getStringValue(postPrefix + "/Text").setValue(post.getText());
1376                         }
1377                         configuration.getStringValue(sonePrefix + "/Posts/" + postCounter + "/ID").setValue(null);
1378
1379                         /* save replies. */
1380                         int replyCounter = 0;
1381                         for (PostReply reply : sone.getReplies()) {
1382                                 String replyPrefix = sonePrefix + "/Replies/" + replyCounter++;
1383                                 configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
1384                                 configuration.getStringValue(replyPrefix + "/Post/ID").setValue(reply.getPostId());
1385                                 configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
1386                                 configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
1387                         }
1388                         configuration.getStringValue(sonePrefix + "/Replies/" + replyCounter + "/ID").setValue(null);
1389
1390                         /* save post likes. */
1391                         int postLikeCounter = 0;
1392                         for (String postId : sone.getLikedPostIds()) {
1393                                 configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter++ + "/ID").setValue(postId);
1394                         }
1395                         configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter + "/ID").setValue(null);
1396
1397                         /* save reply likes. */
1398                         int replyLikeCounter = 0;
1399                         for (String replyId : sone.getLikedReplyIds()) {
1400                                 configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter++ + "/ID").setValue(replyId);
1401                         }
1402                         configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter + "/ID").setValue(null);
1403
1404                         /* save friends. */
1405                         int friendCounter = 0;
1406                         for (String friendId : sone.getFriends()) {
1407                                 configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter++ + "/ID").setValue(friendId);
1408                         }
1409                         configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter + "/ID").setValue(null);
1410
1411                         /* save albums. first, collect in a flat structure, top-level first. */
1412                         List<Album> albums = from(sone.getRootAlbum().getAlbums()).transformAndConcat(Album.FLATTENER).toList();
1413
1414                         int albumCounter = 0;
1415                         for (Album album : albums) {
1416                                 String albumPrefix = sonePrefix + "/Albums/" + albumCounter++;
1417                                 configuration.getStringValue(albumPrefix + "/ID").setValue(album.getId());
1418                                 configuration.getStringValue(albumPrefix + "/Title").setValue(album.getTitle());
1419                                 configuration.getStringValue(albumPrefix + "/Description").setValue(album.getDescription());
1420                                 configuration.getStringValue(albumPrefix + "/Parent").setValue(album.getParent().equals(sone.getRootAlbum()) ? null : album.getParent().getId());
1421                                 configuration.getStringValue(albumPrefix + "/AlbumImage").setValue(album.getAlbumImage().transform(GET_ID).orNull());
1422                         }
1423                         configuration.getStringValue(sonePrefix + "/Albums/" + albumCounter + "/ID").setValue(null);
1424
1425                         /* save images. */
1426                         int imageCounter = 0;
1427                         for (Album album : albums) {
1428                                 for (Image image : album.getImages()) {
1429                                         if (!image.isInserted()) {
1430                                                 continue;
1431                                         }
1432                                         String imagePrefix = sonePrefix + "/Images/" + imageCounter++;
1433                                         configuration.getStringValue(imagePrefix + "/ID").setValue(image.getId());
1434                                         configuration.getStringValue(imagePrefix + "/Album").setValue(album.getId());
1435                                         configuration.getStringValue(imagePrefix + "/Key").setValue(image.getKey());
1436                                         configuration.getStringValue(imagePrefix + "/Title").setValue(image.getTitle());
1437                                         configuration.getStringValue(imagePrefix + "/Description").setValue(image.getDescription());
1438                                         configuration.getLongValue(imagePrefix + "/CreationTime").setValue(image.getCreationTime());
1439                                         configuration.getIntValue(imagePrefix + "/Width").setValue(image.getWidth());
1440                                         configuration.getIntValue(imagePrefix + "/Height").setValue(image.getHeight());
1441                                 }
1442                         }
1443                         configuration.getStringValue(sonePrefix + "/Images/" + imageCounter + "/ID").setValue(null);
1444
1445                         /* save options. */
1446                         configuration.getBooleanValue(sonePrefix + "/Options/AutoFollow").setValue(sone.getOptions().getBooleanOption("AutoFollow").getReal());
1447                         configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewSones").setValue(sone.getOptions().getBooleanOption("ShowNotification/NewSones").getReal());
1448                         configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewPosts").setValue(sone.getOptions().getBooleanOption("ShowNotification/NewPosts").getReal());
1449                         configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewReplies").setValue(sone.getOptions().getBooleanOption("ShowNotification/NewReplies").getReal());
1450                         configuration.getBooleanValue(sonePrefix + "/Options/EnableSoneInsertNotifications").setValue(sone.getOptions().getBooleanOption("EnableSoneInsertNotifications").getReal());
1451                         configuration.getStringValue(sonePrefix + "/Options/ShowCustomAvatars").setValue(sone.getOptions().<ShowCustomAvatars>getEnumOption("ShowCustomAvatars").get().name());
1452
1453                         configuration.save();
1454
1455                         webOfTrustUpdater.setProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition", String.valueOf(sone.getLatestEdition()));
1456
1457                         logger.log(Level.INFO, String.format("Sone %s saved.", sone));
1458                 } catch (ConfigurationException ce1) {
1459                         logger.log(Level.WARNING, String.format("Could not save Sone: %s", sone), ce1);
1460                 }
1461         }
1462
1463         /** Saves the current options. */
1464         private void saveConfiguration() {
1465                 synchronized (configuration) {
1466                         if (storingConfiguration) {
1467                                 logger.log(Level.FINE, "Already storing configuration…");
1468                                 return;
1469                         }
1470                         storingConfiguration = true;
1471                 }
1472
1473                 /* store the options first. */
1474                 try {
1475                         configuration.getIntValue("Option/ConfigurationVersion").setValue(0);
1476                         configuration.getIntValue("Option/InsertionDelay").setValue(options.getIntegerOption("InsertionDelay").getReal());
1477                         configuration.getIntValue("Option/PostsPerPage").setValue(options.getIntegerOption("PostsPerPage").getReal());
1478                         configuration.getIntValue("Option/ImagesPerPage").setValue(options.getIntegerOption("ImagesPerPage").getReal());
1479                         configuration.getIntValue("Option/CharactersPerPost").setValue(options.getIntegerOption("CharactersPerPost").getReal());
1480                         configuration.getIntValue("Option/PostCutOffLength").setValue(options.getIntegerOption("PostCutOffLength").getReal());
1481                         configuration.getBooleanValue("Option/RequireFullAccess").setValue(options.getBooleanOption("RequireFullAccess").getReal());
1482                         configuration.getIntValue("Option/PositiveTrust").setValue(options.getIntegerOption("PositiveTrust").getReal());
1483                         configuration.getIntValue("Option/NegativeTrust").setValue(options.getIntegerOption("NegativeTrust").getReal());
1484                         configuration.getStringValue("Option/TrustComment").setValue(options.getStringOption("TrustComment").getReal());
1485                         configuration.getBooleanValue("Option/ActivateFcpInterface").setValue(options.getBooleanOption("ActivateFcpInterface").getReal());
1486                         configuration.getIntValue("Option/FcpFullAccessRequired").setValue(options.getIntegerOption("FcpFullAccessRequired").getReal());
1487
1488                         /* save known Sones. */
1489                         int soneCounter = 0;
1490                         synchronized (knownSones) {
1491                                 for (String knownSoneId : knownSones) {
1492                                         configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").setValue(knownSoneId);
1493                                 }
1494                                 configuration.getStringValue("KnownSone/" + soneCounter + "/ID").setValue(null);
1495                         }
1496
1497                         /* save Sone following times. */
1498                         soneCounter = 0;
1499                         synchronized (soneFollowingTimes) {
1500                                 for (Entry<String, Long> soneFollowingTime : soneFollowingTimes.entrySet()) {
1501                                         configuration.getStringValue("SoneFollowingTimes/" + soneCounter + "/Sone").setValue(soneFollowingTime.getKey());
1502                                         configuration.getLongValue("SoneFollowingTimes/" + soneCounter + "/Time").setValue(soneFollowingTime.getValue());
1503                                         ++soneCounter;
1504                                 }
1505                                 configuration.getStringValue("SoneFollowingTimes/" + soneCounter + "/Sone").setValue(null);
1506                         }
1507
1508                         /* save known posts. */
1509                         database.save();
1510
1511                         /* save bookmarked posts. */
1512                         int bookmarkedPostCounter = 0;
1513                         synchronized (bookmarkedPosts) {
1514                                 for (String bookmarkedPostId : bookmarkedPosts) {
1515                                         configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(bookmarkedPostId);
1516                                 }
1517                         }
1518                         configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(null);
1519
1520                         /* now save it. */
1521                         configuration.save();
1522
1523                 } catch (ConfigurationException ce1) {
1524                         logger.log(Level.SEVERE, "Could not store configuration!", ce1);
1525                 } catch (DatabaseException de1) {
1526                         logger.log(Level.SEVERE, "Could not save database!", de1);
1527                 } finally {
1528                         synchronized (configuration) {
1529                                 storingConfiguration = false;
1530                         }
1531                 }
1532         }
1533
1534         /** Loads the configuration. */
1535         private void loadConfiguration() {
1536                 /* create options. */
1537                 options.addIntegerOption("InsertionDelay", new DefaultOption<Integer>(60, new IntegerRangePredicate(0, Integer.MAX_VALUE), new OptionWatcher<Integer>() {
1538
1539                         @Override
1540                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
1541                                 SoneInserter.setInsertionDelay(newValue);
1542                         }
1543
1544                 }));
1545                 options.addIntegerOption("PostsPerPage", new DefaultOption<Integer>(10, new IntegerRangePredicate(1, Integer.MAX_VALUE)));
1546                 options.addIntegerOption("ImagesPerPage", new DefaultOption<Integer>(9, new IntegerRangePredicate(1, Integer.MAX_VALUE)));
1547                 options.addIntegerOption("CharactersPerPost", new DefaultOption<Integer>(400, Predicates.<Integer>or(new IntegerRangePredicate(50, Integer.MAX_VALUE), Predicates.equalTo(-1))));
1548                 options.addIntegerOption("PostCutOffLength", new DefaultOption<Integer>(200, Predicates.<Integer>or(new IntegerRangePredicate(50, Integer.MAX_VALUE), Predicates.equalTo(-1))));
1549                 options.addBooleanOption("RequireFullAccess", new DefaultOption<Boolean>(false));
1550                 options.addIntegerOption("PositiveTrust", new DefaultOption<Integer>(75, new IntegerRangePredicate(0, 100)));
1551                 options.addIntegerOption("NegativeTrust", new DefaultOption<Integer>(-25, new IntegerRangePredicate(-100, 100)));
1552                 options.addStringOption("TrustComment", new DefaultOption<String>("Set from Sone Web Interface"));
1553                 options.addBooleanOption("ActivateFcpInterface", new DefaultOption<Boolean>(false, new OptionWatcher<Boolean>() {
1554
1555                         @Override
1556                         @SuppressWarnings("synthetic-access")
1557                         public void optionChanged(Option<Boolean> option, Boolean oldValue, Boolean newValue) {
1558                                 fcpInterface.setActive(newValue);
1559                         }
1560                 }));
1561                 options.addIntegerOption("FcpFullAccessRequired", new DefaultOption<Integer>(2, new OptionWatcher<Integer>() {
1562
1563                         @Override
1564                         @SuppressWarnings("synthetic-access")
1565                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
1566                                 fcpInterface.setFullAccessRequired(FullAccessRequired.values()[newValue]);
1567                         }
1568
1569                 }));
1570
1571                 loadConfigurationValue("InsertionDelay");
1572                 loadConfigurationValue("PostsPerPage");
1573                 loadConfigurationValue("ImagesPerPage");
1574                 loadConfigurationValue("CharactersPerPost");
1575                 loadConfigurationValue("PostCutOffLength");
1576                 options.getBooleanOption("RequireFullAccess").set(configuration.getBooleanValue("Option/RequireFullAccess").getValue(null));
1577                 loadConfigurationValue("PositiveTrust");
1578                 loadConfigurationValue("NegativeTrust");
1579                 options.getStringOption("TrustComment").set(configuration.getStringValue("Option/TrustComment").getValue(null));
1580                 options.getBooleanOption("ActivateFcpInterface").set(configuration.getBooleanValue("Option/ActivateFcpInterface").getValue(null));
1581                 options.getIntegerOption("FcpFullAccessRequired").set(configuration.getIntValue("Option/FcpFullAccessRequired").getValue(null));
1582
1583                 /* load known Sones. */
1584                 int soneCounter = 0;
1585                 while (true) {
1586                         String knownSoneId = configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").getValue(null);
1587                         if (knownSoneId == null) {
1588                                 break;
1589                         }
1590                         synchronized (knownSones) {
1591                                 knownSones.add(knownSoneId);
1592                         }
1593                 }
1594
1595                 /* load Sone following times. */
1596                 soneCounter = 0;
1597                 while (true) {
1598                         String soneId = configuration.getStringValue("SoneFollowingTimes/" + soneCounter + "/Sone").getValue(null);
1599                         if (soneId == null) {
1600                                 break;
1601                         }
1602                         long time = configuration.getLongValue("SoneFollowingTimes/" + soneCounter + "/Time").getValue(Long.MAX_VALUE);
1603                         synchronized (soneFollowingTimes) {
1604                                 soneFollowingTimes.put(soneId, time);
1605                         }
1606                         ++soneCounter;
1607                 }
1608
1609                 /* load bookmarked posts. */
1610                 int bookmarkedPostCounter = 0;
1611                 while (true) {
1612                         String bookmarkedPostId = configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").getValue(null);
1613                         if (bookmarkedPostId == null) {
1614                                 break;
1615                         }
1616                         synchronized (bookmarkedPosts) {
1617                                 bookmarkedPosts.add(bookmarkedPostId);
1618                         }
1619                 }
1620
1621         }
1622
1623         /**
1624          * Loads an {@link Integer} configuration value for the option with the given
1625          * name, logging validation failures.
1626          *
1627          * @param optionName
1628          *              The name of the option to load
1629          */
1630         private void loadConfigurationValue(String optionName) {
1631                 try {
1632                         options.getIntegerOption(optionName).set(configuration.getIntValue("Option/" + optionName).getValue(null));
1633                 } catch (IllegalArgumentException iae1) {
1634                         logger.log(Level.WARNING, String.format("Invalid value for %s in configuration, using default.", optionName));
1635                 }
1636         }
1637
1638         /**
1639          * Notifies the core that a new {@link OwnIdentity} was added.
1640          *
1641          * @param ownIdentityAddedEvent
1642          *              The event
1643          */
1644         @Subscribe
1645         public void ownIdentityAdded(OwnIdentityAddedEvent ownIdentityAddedEvent) {
1646                 OwnIdentity ownIdentity = ownIdentityAddedEvent.ownIdentity();
1647                 logger.log(Level.FINEST, String.format("Adding OwnIdentity: %s", ownIdentity));
1648                 if (ownIdentity.hasContext("Sone")) {
1649                         database.storeIdentity(ownIdentity);
1650                         addLocalSone(ownIdentity);
1651                 }
1652         }
1653
1654         /**
1655          * Notifies the core that an {@link OwnIdentity} was removed.
1656          *
1657          * @param ownIdentityRemovedEvent
1658          *              The event
1659          */
1660         @Subscribe
1661         public void ownIdentityRemoved(OwnIdentityRemovedEvent ownIdentityRemovedEvent) {
1662                 OwnIdentity ownIdentity = ownIdentityRemovedEvent.ownIdentity();
1663                 logger.log(Level.FINEST, String.format("Removing OwnIdentity: %s", ownIdentity));
1664                 trustedIdentities.removeAll(ownIdentity);
1665         }
1666
1667         /**
1668          * Notifies the core that a new {@link Identity} was added.
1669          *
1670          * @param identityAddedEvent
1671          *              The event
1672          */
1673         @Subscribe
1674         public void identityAdded(IdentityAddedEvent identityAddedEvent) {
1675                 Identity identity = identityAddedEvent.identity();
1676                 logger.log(Level.FINEST, String.format("Adding Identity: %s", identity));
1677                 trustedIdentities.put(identityAddedEvent.ownIdentity(), identity);
1678                 database.storeIdentity(identity);
1679                 addRemoteSone(identity);
1680         }
1681
1682         /**
1683          * Notifies the core that an {@link Identity} was updated.
1684          *
1685          * @param identityUpdatedEvent
1686          *              The event
1687          */
1688         @Subscribe
1689         public void identityUpdated(IdentityUpdatedEvent identityUpdatedEvent) {
1690                 final Identity identity = identityUpdatedEvent.identity();
1691                 database.storeIdentity(identity);
1692                 soneDownloaders.execute(new Runnable() {
1693
1694                         @Override
1695                         @SuppressWarnings("synthetic-access")
1696                         public void run() {
1697                                 Optional<Sone> sone = getRemoteSone(identity.getId());
1698                                 sone.get().modify().setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), sone.get().getLatestEdition())).update();
1699                                 soneDownloader.addSone(sone.get());
1700                                 soneDownloader.fetchSone(sone.get());
1701                         }
1702                 });
1703         }
1704
1705         /**
1706          * Notifies the core that an {@link Identity} was removed.
1707          *
1708          * @param identityRemovedEvent
1709          *              The event
1710          */
1711         @Subscribe
1712         public void identityRemoved(IdentityRemovedEvent identityRemovedEvent) {
1713                 OwnIdentity ownIdentity = identityRemovedEvent.ownIdentity();
1714                 Identity identity = identityRemovedEvent.identity();
1715                 trustedIdentities.remove(ownIdentity, identity);
1716                 boolean foundIdentity = false;
1717                 for (Entry<OwnIdentity, Collection<Identity>> trustedIdentity : trustedIdentities.asMap().entrySet()) {
1718                         if (trustedIdentity.getKey().equals(ownIdentity)) {
1719                                 continue;
1720                         }
1721                         if (trustedIdentity.getValue().contains(identity)) {
1722                                 foundIdentity = true;
1723                         }
1724                 }
1725                 if (foundIdentity) {
1726                         /* some local identity still trusts this identity, don’t remove. */
1727                         return;
1728                 }
1729                 Optional<Sone> sone = getSone(identity.getId());
1730                 if (!sone.isPresent()) {
1731                         /* TODO - we don’t have the Sone anymore. should this happen? */
1732                         return;
1733                 }
1734                 database.removePosts(sone.get());
1735                 for (Post post : sone.get().getPosts()) {
1736                         eventBus.post(new PostRemovedEvent(post));
1737                 }
1738                 database.removePostReplies(sone.get());
1739                 for (PostReply reply : sone.get().getReplies()) {
1740                         eventBus.post(new PostReplyRemovedEvent(reply));
1741                 }
1742                 synchronized (sones) {
1743                         sones.remove(identity.getId());
1744                 }
1745                 eventBus.post(new SoneRemovedEvent(sone.get()));
1746         }
1747
1748         /**
1749          * Deletes the temporary image.
1750          *
1751          * @param imageInsertFinishedEvent
1752          *              The event
1753          */
1754         @Subscribe
1755         public void imageInsertFinished(ImageInsertFinishedEvent imageInsertFinishedEvent) {
1756                 logger.log(Level.WARNING, String.format("Image insert finished for %s: %s", imageInsertFinishedEvent.image(), imageInsertFinishedEvent.resultingUri()));
1757                 imageInsertFinishedEvent.image().modify().setKey(imageInsertFinishedEvent.resultingUri().toString()).update();
1758                 deleteTemporaryImage(imageInsertFinishedEvent.image().getId());
1759                 touchConfiguration();
1760         }
1761
1762         public Optional<PostCreated> postCreated() {
1763                 return Optional.<PostCreated>of(new PostCreated() {
1764                         @Override
1765                         public void postCreated(final Post post) {
1766                                 if (post.isKnown()) {
1767                                         return;
1768                                 }
1769                                 eventBus.post(new NewPostFoundEvent(post));
1770                                 if (post.getSone().isLocal()) {
1771                                         localElementTicker.schedule(new Runnable() {
1772                                                 @Override
1773                                                 public void run() {
1774                                                         markPostKnown(post);
1775                                                 }
1776                                         }, 10, TimeUnit.SECONDS);
1777                                 }
1778                         }
1779                 });
1780         }
1781
1782         public Optional<PostReplyCreated> postReplyCreated() {
1783                 return Optional.<PostReplyCreated>of(new PostReplyCreated() {
1784                         @Override
1785                         public void postReplyCreated(final PostReply postReply) {
1786                                 if (postReply.isKnown()) {
1787                                         return;
1788                                 }
1789                                 eventBus.post(new NewPostReplyFoundEvent(postReply));
1790                                 if (postReply.getSone().isLocal()) {
1791                                         localElementTicker.schedule(new Runnable() {
1792
1793                                                 /**
1794                                                  * {@inheritDoc}
1795                                                  */
1796                                                 @Override
1797                                                 public void run() {
1798                                                         postReplyUpdated().get().replyUpdated(postReply);
1799                                                 }
1800                                         }, 10, TimeUnit.SECONDS);
1801                                 }
1802                         }
1803                 });
1804         }
1805
1806         public Optional<ReplyUpdated<PostReply>> postReplyUpdated() {
1807                 return Optional.<ReplyUpdated<PostReply>>of(new ReplyUpdated<PostReply>() {
1808                         @Override
1809                         public void replyUpdated(PostReply reply) {
1810                                 eventBus.post(new MarkPostReplyKnownEvent(reply));
1811                         }
1812                 });
1813         }
1814
1815         public Optional<ImageCreated> imageCreated() {
1816                 return Optional.<ImageCreated>of(new ImageCreated() {
1817                         @Override
1818                         public void imageCreated(Image image) {
1819                                 /* nothing happens here yet. */
1820                         }
1821                 });
1822         }
1823
1824 }